migration: Move migrate_cap_set() to options.c

Signed-off-by: Juan Quintela <quintela@redhat.com>
Reviewed-by: Vladimir Sementsov-Ogievskiy <vsementsov@yandex-team.ru>

migration/migration.c

@@ -1666,26 +1666,6 @@ void migrate_set_state(int *state, int old_state, int new_state)
     }
 }
 
-static bool migrate_cap_set(int cap, bool value, Error **errp)
-{
-    MigrationState *s = migrate_get_current();
-    bool new_caps[MIGRATION_CAPABILITY__MAX];
-
-    if (migration_is_running(s->state)) {
-        error_setg(errp, QERR_MIGRATION_ACTIVE);
-        return false;
-    }
-
-    memcpy(new_caps, s->capabilities, sizeof(new_caps));
-    new_caps[cap] = value;
-
-    if (!migrate_caps_check(s->capabilities, new_caps, errp)) {
-        return false;
-    }
-    s->capabilities[cap] = value;
-    return true;
-}
-
 static void migrate_set_block_incremental(MigrationState *s, bool value)
 {
     s->parameters.block_incremental = value;

migration/options.c

@@ -14,6 +14,7 @@
 #include "qemu/osdep.h"
 #include "qapi/error.h"
 #include "qapi/qapi-commands-migration.h"
+#include "qapi/qmp/qerror.h"
 #include "sysemu/runstate.h"
 #include "migration.h"
 #include "ram.h"
@@ -392,6 +393,26 @@ bool migrate_caps_check(bool *old_caps, bool *new_caps, Error **errp)
     return true;
 }
 
+bool migrate_cap_set(int cap, bool value, Error **errp)
+{
+    MigrationState *s = migrate_get_current();
+    bool new_caps[MIGRATION_CAPABILITY__MAX];
+
+    if (migration_is_running(s->state)) {
+        error_setg(errp, QERR_MIGRATION_ACTIVE);
+        return false;
+    }
+
+    memcpy(new_caps, s->capabilities, sizeof(new_caps));
+    new_caps[cap] = value;
+
+    if (!migrate_caps_check(s->capabilities, new_caps, errp)) {
+        return false;
+    }
+    s->capabilities[cap] = value;
+    return true;
+}
+
 MigrationCapabilityStatusList *qmp_query_migrate_capabilities(Error **errp)
 {
     MigrationCapabilityStatusList *head = NULL, **tail = &head;

migration/options.h

@@ -41,5 +41,6 @@ bool migrate_zero_copy_send(void);
 /* capabilities helpers */
 
 bool migrate_caps_check(bool *old_caps, bool *new_caps, Error **errp);
+bool migrate_cap_set(int cap, bool value, Error **errp);
 
 #endif